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Best Diversified Products, Inc. 107 Flint St. Jonesboro, Arkansas 72401 Phone: 870-935-0970 Toll Free: 800-327-9209 Fax: 870-935-3661 99042 July, 2003 Please read entire manual before operating conveyor. Factory Order Number:_______________ Serial Number:______________________ Ship Date:__________________________ Manual Diversified Products, Inc. Best/Flex Power Expandable Conveyor With Accumulation Leg Mount Accumulation Read-Between-Roller Accumulation E230497

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Best Diversified Products, Inc.107 Flint St.

Jonesboro, Arkansas 72401Phone: 870-935-0970

Toll Free: 800-327-9209Fax: 870-935-3661

99042July, 2003

Please read entire manual before operating conveyor.

Factory Order Number:_______________

Serial Number:______________________

Ship Date:__________________________

Manual

Diversified Products, Inc.Best/Flex Power Expandable Conveyor

With AccumulationLeg Mount Accumulation

Read-Between-Roller Accumulation

E230497

2

Contents

General Operation 4

Host System Interface 4

Installation 5

Safety Information (UL Compliance Statement) 6

Maintenance Schedule 7

Accumulation Trouble Shooting Guide 8-10

Circuit Component Layout 11

Leg Mounted Photo-Sensors

Input Zone Layout and Parts List 12-13

Middle Zone Layout and Parts List 14-15

Last Zone Layout and Parts List 16-17

Read-Between-Roller Mounted Photo-Sensors

Input Zone Layout and Parts List 18-19

Middle Zone Layout and Parts List 20-21

Last Zone Layout and Parts List 22-23

Power Supply Connection Diagram 26

Zone Connection Diagram 27

Interface Connection Diagram 28

Control Assembly 29

Note 30-31

3

Thank YouCongratulations on your purchase of the BEST/FLEX POWER CONVEYOR with ACCUMU-LATION. This conveyor has been designed to increase your material handling productivity whilepreventing damage to your packages through zero pressure accumulation. Please take the time toread through this manual and familiarize yourself with your new conveyor and its handling, mainte-nance and safety procedures.

4

General Operation

The BEST/FLEX POWER CONVEYOR is a flexible, expandable powered conveyor thatoperates from a standard 115VAC grounded outlet.

The accumulation option allows zero pressure accumulation of packages in individual zonesalong the conveyor. Packages are detected by photoelectric sensors located at the end of each zone.When no packages are on the conveyor, all zones will run. The first package placed on the conveyorwill travel to the last zone on the discharge end of the conveyor and stop when it breaks that zone’sphotoeye beam. The remaining zones continue to run. The next package placed on the conveyorwill stop at the next-to-last zone. Packages will continue to accumulate the length of the conveyor.This allows full utilization of the conveyor without letting packages become damaged from overcrowding or “bunching up” on the conveyor.

When the package in the discharge end zone is removed from the conveyor, all zones willstart and the packages will again “accumulate” toward the discharge end of the conveyor.

The accumulation conveyor comes with photoelectric sensors set in two configurations. Notethat the configuration is customer-determined at the time of the order.

One configuration is with the photo-eyes mounted on the leg above and outside the conveyorbed. This configuration is known as Leg Mount Optics.

The second configuration is with the photo-eyes mounted slightly below and in the conveyorbed, at the leg locations. This configuration is known as Read Between Roller Optics.

Host System Interface:Two sets of dry contacts, one normally open and one normally closed, are provided to give aninterface signal from the BEST/FLEX conveyor to a host control system. The normally open con-tacts will be closed anytime one or more zones of the BEST/FLEX Accumulation conveyor arerunning. A terminal block for these contacts is provided on the power supply board located in thelarger enclosure at the end of the conveyor. (Refer to the POWER SUPPLY CONNECTION DIA-GRAM.) This terminal block is labeled “EXTRA CONTACTS”. The individual terminals arelabeled “NO” (normally open), “COM” (common), “NC” (normally closed) and “GRD” (ground).These contacts are rated up to 10A/250VAC or 10A/30VDC.

CAUTION: Always unplug the 115VAC power cord before working on the unit or opening anyelectrical enclosures. Never operate the conveyor with the enclosures open.

5

Installation1) Unpack the BEST/FLEX POWER CONVEYOR and inspect for damage incurred in shipping.

Pay particular attention to the wiring to ensure no wires are pulled loose or damaged in any way.If damage is found, contact the factory before applying power to the conveyor.

2) Make sure all START/STOP switches (there will be one switch at each end of the conveyor) arein the STOP position.

3) Roll unit into position. If applicable, use the connect hooks to attach the BEST/FLEX to a rigidconveyor.

4) Plug the power cord into a 115VAC grounded receptacle.

5) Release all Emergency Stop pushbuttons. (Any one Emergency Stop pushbutton that is depressed willprevent the conveyor from running.) There is an on/off switch on the control box located near themiddle of the conveyor.

6) Adjust the speed of the conveyor with the potentiometer on the side of the enclosure mountednear the power cord.

7) Begin placing packages on the conveyor. They will travel to the last available zone and stopuntil packages are removed from the discharge end.

6

Safety Information1) Avoid wearing excessively loose clothing when working with moving machinery.

2) Keep long hair pulled up to prevent it from becoming caught in moving parts.

3) Move conveyor only by grasping the handles. Keep hands, clothing and other itemsaway from sidebars while moving conveyor.

4) BEST/FLEX conveyors and their electrical systems must only be serviced by properlytrained and qualified technicians.

5) Conveyor’s power cord must be connected to a grounded receptacle that is protected byan over current device rated at no larger than 15 Amps unless otherwise specified.

6) Never service conveyor with power applied. Always disconnect power cord beforeservicing equipment.

7) Never operate conveyor with any electrical enclosure open.

Underwriter’s Laboratories Certification Statement

Best conveyors have been thoroughly tested by Underwriter’s Laboratories, and have been found to meet their strict standards for Factory Automation Equipment. Our conveyors are certified to UL508 Standards when shipped from our plant. Our UL file number is E230497. All standards can be found on-line at www.ul.com. ANY MODIFICATION FROM ORIGIONAL FACTORY CONDITION OR REPAIRS NOT PERFORMED BY BEST DIVERSIFIED PRODUCTS’ TECHNITIONS OR CERTIFIED CONTRACTORS MAY VOID UL CERTIFICATION. For specific assistance regarding any UL issues, please contact your Best Diversified Products, Inc. sales representative at 1-800-327-9209.

7

Maintenance ScheduleThe BEST/FLEX Power Conveyor is virtually maintenance free. However, we do recommend thefollowing:

1) Keep the conveyor clean and free of debris, dirt and grease accumulation.

2) Periodically lubricate all slotted components with a lightweight lubricant toensure smooth and easy operation.

3) Inspect wires and cables for damage. If damage to wires or cables is found,disconnect the power cord immediately and do not operate unit until properrepairs are made.

4) Inspect belts for wear. Replace excessively worn belts.

5) Inspect side bar nuts and bolts for looseness or missing parts. Tighten or replaceas needed.

6) Make sure reflectors and photoeyes are clean, unobstructed and properly aligned.

7) Verify START/E-STOP/STOP switches operate properly.

All of the above maintenance inspections should be conducted daily.

8

Accumulation Trouble Shooting GuideTo use this guide, find the heading that best fits your conveyor’s condition and check the numbereditems in the order they appear. It is important to proceed in the order given since it is assumed ateach item that all preceding items under that heading have passed inspection.

CAUTION: Electrical systems should only be serviced by qualified personnel. Refer to andobserve all local codes and OSHA guidelines for LOCKOUT/TAGOUT procedures.Make sure all power has been disconnected before opening any enclosure. Keephands and tools away from electrical circuits when power is applied. 115VAC ispresent even when the conveyor is stopped by the STOP switch. The only way toguard against electrical shock is to unplug the conveyor from its AC power sourcebefore servicing.

Diagnostic LEDsTo aid in troubleshooting, there are a number of LEDs mounted on the power supply printed

circuit board (PCB) in the larger enclosure on the first leg of the system and on each accumulationPCB in the smaller enclosures located at each motor. These LEDs are shown on the system wireconnection diagrams and their meanings are listed here.

Power Supply Board’s LEDs and Neon Lamp:RED On when STOP button is pushed and RELAY1 is off.GREEN On when 17VDC is present through the DC fuse.LARGE AMBER On when the photoeye connected to the power supply is blocked.SMALL AMBER On when RELAY2 is energized.NEON LAMP On when RELAY1 is energized and AC power is supplied to the DC

controller.

Accumulation Board’s LEDs:RED On when that zone is stopped and stopped signal is sent to adjacent

zones.AMBER On when the photoeye used for forward accumulation is blocked.GREEN On when the photoeye used for reverse accumulation is blocked.

NO ZONE RUNS:1) Check AC power coming into conveyor.

A) Make sure the unit is plugged into a hot 115VAC outlet.B) Check the circuit breaker mounted in the side of the power supply enclosure. If button is out

an overload has occurred. The fault causing this condition must be cleared before continu-ing.

C) If AC power is present, at least one LED on top of each photoeye will be on since the DCvoltage supplying the photoeyes is derived from the AC power.

D) AC power can be verified with an appropriate voltage meter across the L1 and L2 terminalson the power supply board.

9

Accumulation Trouble Shooting Guide (Cont.)

2) Check DC control voltage.A) Check that the Green LED on the power supply is on. If LED is off and AC voltage is

present, check the ¾ amp and 2 amp fuses on the power supply board. If a fuse is blown,repair any electrical shorts or overload conditions before continuing. If fuses are not blownand the GREEN LED is not on, the power supply board has failed.

B) If the GREEN LED is on, check for DC voltage at accumulation zones. If DC power ispresent, LEDs on photoeyes should be lit. The AMBER LED on the accumulation boardshould also be lit when that zone’s photoeye is blocked. If these LEDs are not on, make sureall communication cables are plugged in. Check the communication cable between powersupply board and first zone accumulation board.

3) Check for AC power coming into the DC motor controller.A) The neon lamp on the power supply board should be on whenever AC power is supplied to

the DC controller. If this lamp is off and the RED LED on the power supply board is alsooff, check the 15 amp fuse on the power supply board that powers the DC controller. If thisfuse is good, the relay on the power supply board has failed.

B) If the RED LED is on, check to be sure all E-STOP pushbuttons have been released.C) Check the AC fuse on the DC motor controller.C) AC power can be verified with a volt meter at the DC controller.

NO ZONE RUNS:

4) Check for DC power on the output side of the DC motor controller.A) Check the DC fuse on the DC controller. If the DC fuse is good, the plug-in resistor is in

place and no DC voltage is present at the output of the DC motor controller, the controllerhas failed. If the fuse is blown, the cause could be either a shorted coiled motor cord or amotor drawing excessive current.

5) Check for DC power at the first zone.A) Unplug the coiled motor cord at the first zone. Test for DC voltage between the two female

receptacles of the cord attached to the DC controller. If voltage was present at the output ofthe controller and none is present at the connector, the cord is defective.

10

Accumulation Trouble Shooting Guide (Cont.)

ONE OR MORE ZONES WILL NOT RUN:1) If zone is an end zone, check that zone’s photoeye for alignment and proper functioning.

A) The photo eye’s GREEN LED will be on if its beam is blocked or the eye is not aligned withreflector. If the GREEN LED does not come on when the beam is broken, the photoeye isdefective.

2) Check accumulation board for control voltage.A) Observe photo eye’s LEDs. They are powered from the accumulation’s control voltage. If

none are on, the photoeye may not have power. Control voltage is supplied to each accumu-lation board by the communication cable connected to the PREVIOUS modular connector.Check cable for broken wires or defective connectors.

B) Block that zone’s photoeye. The AMBER LED on the accumulation board should come onwhen the photoeye’s beam is broken.

3) Check for DC voltage at the motor cable’s connector on the accumulation board.A) If no voltage is present, check fuse. If the fuse is blown check for shorts in the motor cable

and in the motor.B) If no voltage is present, check for voltage at connector for coiled motor cord’s pigtail. Cable

could be defective if there is no voltage here and other zones will run.C) If voltage is present at the motor cable’s connector, the motor or its cable is defective.

ONE PHOTOEYE STOPS TWO OR MORE ZONES1) Check alignment of photoeyes in zones that stop when the next zone’s photoeye is blocked.

A) If a zone’s photoeye is not properly aligned and the next zone’s eye is blocked, both zones willoperate as one. The GREEN LED on the top of the photoeye should only be lit when the photoeye isblocked. It will not be on when the photoeye is properly lined up with its reflector. When a photoeye’s beam is not being reflected back to the photoeye the accumulation board’s AMBER LED willbe lit.

ZONE WILL NOT SHUT OFF WHEN PHOTOEYE IS BLOCKED ANDNEXT ZONE IS OFF1) Check photoeye for proper function.

A) Make sure the accumulation’s AMBER LED is on when the photoeye is blocked. If it does not comeon, check the connections from the photoeye cable at the board’s connector. The photoeye couldalso be defective.

11

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THIS PAGE LEFT INTENTIONALLY BLANK

25

GeneralizedElectrical Connection

Diagrams

26

Power Supply Connection Diagram

27

Zone Connection Diagram

Interface Connection Diagram

28

29

Control Assembly

AA

2

6

89

73

1

11

5

10

4

11

1300901

CONTACT,

NORMALLY CLOSED

22mm

10

3300902

Contact, Norm

ally

Open 22mm

91

300910

Nameplate, 22mm

E-Stop

81

300908

Nameplate, 22mm

Stop

71

300909

Nameplate, 22mm

Start

61

300213

Strain Relief

53

300904

Pushbutton, Base

22mm

41

300903

3 Hole Enclosure

31

300906

Pushbutton,

22mm Green

21

300905

Pushbutton,

22mm Red

11

300907

Pushbutton,

22mm E-Stop

Parts List

ITEM

QTY

PART NUMBER

DESCRIPTION

30

Notes

31

Notes

Best Diversified Products, Inc.107 Flint St.

Jonesboro, Arkansas 72401Phone: 870-935-0970

Toll Free: 800-327-9209Fax: 870-935-3661

Call Best Customer Service

99042